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Finding the Fourth Proportional to 567,803.88, 782,232.48 and 470,642.76

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Solution

The fourth proportional to 567,803.88, 782,232.48 and 470,642.76 is: 648,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,803.88 : 782,232.48 = 470,642.76 : x
  2. Step 2: Convert to fraction form
    567,803.88/782,232.48 = 470,642.76/x
  3. Step 3: Cross multiply
    567,803.88x = 782,232.48 × 470,642.76
  4. Step 4: Simplify right side
    567,803.88x = 368,152,053,348.85
  5. Step 5: Solve for x
    x = 368,152,053,348.85/567,803.88
  6. Step 6: Final answer
    x = 648,378.90

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.